Implement workflow essence extractor
- Extract useful information from airflow workflow code
- Produce "essence" as a json output
- Output will be passed to workflow controller for workflow management

No source code change.

Change-Id: I01de9939fdf699522e81c369676c33c73a38b4bc
diff --git a/VERSION b/VERSION
new file mode 100644
index 0000000..b9fd26f
--- /dev/null
+++ b/VERSION
@@ -0,0 +1 @@
+0.1.0-dev1
\ No newline at end of file